John westinghotjse



(No Model.)

J. WESTINGHOUSE. STEAM BOILER SPARK ARRESTER.

REL/247,722 Patented-Sept. 27,.1'881.-

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UNITED STATES PATENT OFFIC JOHN WESTINGHOUSE, or SCHENEOTADY, NEW YORK.

STEAM-BOILER SPARK-ARRESTER.

SPECIFICATION formingpart of Letters Patent No. 247,722, dated September 27, 1881. Application filed June 21, 1881. (No model.)

To all whom it may concern:

Be it known that I, JOHN WESTINGHOUSE, a citizen of the United States, residing at Schenectady, in the county of Schenectady and State of New York, have invented new and useful Improvements in Steam -13oiler Spark-Arresters, of which the following is a specification.

This invention relates to spark arresting or extinguishing attachments to steam-boilers; and it consists in a jacket which incloses the boiler both at the side and top thereof, and which is divided into two compartments for receiving and discharging the smoke, respectively, by vertical partitions terminating above the bottom of the jacket, a damper-bonnet which communicates with the smoke-flue of the boiler and with both compartments of the jacket, and whose damper is arranged to shut off communication with the discharging-compartment of the jacket, and asmoke-stack communicatin g with the discharging-compartment of the jacket, as hereinafter more fully set forth.

This invention is illustrated in the accompanyin g drawings, in which Figure 1 represents a side view, partly in section. Fig. 2 is a vertical central section. Fig. 3 is a plan or top view, omitting the top of the jacket, together with the dam per-bonnet, and showing the partitions of the jacket. Fig. 4 is a horizontal section of the damper-bonnet on the line 00 00, Fig. 2.

Similar letters indicate corresponding parts.

The letter A designates the boiler; B, the jacket; 0, the partitions; D, the damper-bonnet; E, the damper, and F the smoke-stack.

The boiler is in two sections, and its outer vertical shell is united by rings 5 6, which are riveted to the shell-sections, respectively, and bolted or otherwise fastened together.

The jacket B incloses the boiler at the side, on that portion thereof above the joint 5 6, and also at the top, and in order to facilitate the removal of the sparks accumulating in the jacket it is made removable.

The partitions G are arranged diametrically opposite to each other, in vertical positions, dividing the jacket into two compartments, B B but the partitions are made to terminate above the bottom of the jacket, as shown in Fig. 1, so as to establish a communication between the compartments.

The damper-bonnet D is placed at the top of the smoke-flue A of the boiler, and is partly open at the bottom to communicate with such flue, while it is also open on opposite sides of its damper E, to communicate with both compartments B B of the jacket.

The damperE is secured to a horizontal rod, 7, which extends outward through the top part of the jacket B, and is provided with a handle, 8, at its outer end. At the top and bottom of the damper-bonnet D respectively is formed a web, 9 or 10, partially closing the same at those points, and the damperE is so arranged that by turning it in the proper direction its edges may be brought into contact with these webs, as shown in Figs. 2 and 4, which-constitutes the closing position of the damper, and whereby the communication of the damperbonnet with the compartment B of the jacket is shut off.

The smoke-stack F is connected to the top of the damper-bonnet D in a vertical plane with the smoke-flue A of the boiler, and it communicates with the compartment 13 of the jacket through the opening left at the top of the bonnet.

When the damper E is closed the smoke or products of combustion rising in the boiler-flue A are received in the compartment 13 of the jacket, thence pass around the lower ends of the partitions G into the compartment B whence they discharge into the smoke-stack F, as indicated by arrows in Figs. 1 and 2, and by this circuitous passage the sparks are either arrested or extinguished, the arrested sparks being deposited in the'bottom of the jacket, while when the damper is opened the products of combustion pass directly into the smokestack. Another effect of the said passage of the smoke through the jacket is to make the latter a heating-medium, protecting the boiler against the condensing effects of the atmosphere.

What I claim as new, and desire to secure by Letters Patent, is,-

The combination, substantially as hereinbefore set forth, with the boiler, of the jacket inclosing the boiler both at the side and top thereof, the vertical partitions of the jacket ing with the dischargingcompartment of the terminating above the bottom thereof and dijacket, all arranged substantially as shown viding the same into two compartments for re and set forth. ceiving and discharging the smoke, respect- In testimony whereof I have hereunto set 5 ively, the damper-bonnet communicating with my hand and seal in the presence of two sub- :5

the smoke-flue of the boiler and with both scribing witnesses.

compartments of the jacket, the damper ar- JOHN WESTINGHOUSE. [L. 3.] ranged in the bonnet to shut off its communiitnessesz cation with the discharging-compartment of JAY WESTINGHOUSE,

1o thejacket, and the smoke-stack communicat- ELMER GIBBS. 

